/*
 * Copyright 2025-2026 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package glz.hawk.poc.springboot.freemarker;

import freemarker.template.TemplateMethodModelEx;
import freemarker.template.TemplateModelException;
import no.api.freemarker.java8.time.TemporalDialerAdapter;

import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.List;

/**
 * This class is responsible for
 *
 * @author Zhang Peng
 */
public class FreemarkerLocaleDateTimeFormatter implements TemplateMethodModelEx {
    @Override
    public Object exec(List args) throws TemplateModelException {
        if (args.size() != 2) throw new IllegalArgumentException("需要两个参数：日期和格式");
        LocalDateTime date = (LocalDateTime) ((TemporalDialerAdapter) args.get(0)).getAdaptedObject(LocalDateTime.class);
        String pattern = args.get(1).toString();
        return DateTimeFormatter.ofPattern(pattern).format(date);
    }
}
